Roswell, SD Political Map | Democrat & Republican Areas in Roswell

Roswell is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.

 
Roswell, SD block-group political-lean map
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About 67% of adults in Roswell typically vote, near the U.S. average of about 62%. Among adults in Roswell, ~15% vote Democratic, ~51% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.

Roswell, SD block-group voter-turnout map
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How Roswell compares

Among cities within 25 miles, Roswell leans more Republican than 11 of 23 neighbors.

Roswell runs about 25 points more Republican than South Dakota as a whole.

Why Roswell leans the way it does

This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Roswell, not a ranked or complete list of what matters most.

Rural areas with a high white share vote Republican. Roswell sits in the bottom quarter on density and about 97% of residents are non-Hispanic white, about 16 points above the South Dakota average of 81%.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Roswell, SD sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Roswell looks the way it does

Homeowners vote more often than renters. About 91% of households in Roswell own their home, about 14 points above the South Dakota average of 77%. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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Sources and methodology

Precinct-level voting records used to fit the model come from South Dakota Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.

Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.

Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.